A Study of Cross-Layer BP/LTP Data Block Size in Space Vehicle Communications over Lossy and Highly Asymmetric Channels

2020 ◽  
pp. 1-1
Author(s):  
Yu Zhou ◽  
Ruhai Wang ◽  
Kanglian Zhao ◽  
Scott C. Burleigh
Keyword(s):  
Space Vehicle ◽  
Block Size ◽  
Data Block ◽  
Cross Layer

scholarly journals Comparison of virtualization performance of Proxmox, OpenVZ, OpenNebula, Vmware ESX and Xen Server

2019 ◽  
Vol 12 ◽  
pp. 214-219
Author(s):  
Grzegorz Rycaj
Keyword(s):  
Cloud Model ◽  
Block Size ◽  
Data Block ◽  
Performance Tests ◽  
Private Cloud

The aim of the article is to compare the performance of five popular virtualization solutions used in the private cloud model. The analysis was conducted for five virtualizers: Proxmox, OpenVZ, OpenNebula, Vmware ESX, Xen Server. OpenSSL, GeekBench and Phoronixtest-suite tools were used to perform performance tests. The comparison included selected encryption methods, data block size, and compilation speed

scholarly journals Data Block and Tuple Identification Using Master Index

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 1848
Author(s):  
Michal Kvet ◽  
Karol Matiasko
Keyword(s):  
Data Storage ◽  
Relational Databases ◽  
Processing Time ◽  
Block Size ◽  
Point Of View ◽  
Data Block ◽  
Physical Point ◽  
Data Files ◽  
Suitable Index ◽  
The Impact

Relational databases are still very often used as a data storage, even for the sensor oriented data. Each data tuple is logically stored in the table referenced by relationships between individual tables. From the physical point of view, data are stored in the data files delimited by the tablespaces. Files are block-oriented. When retrieving data, particular blocks must be identified and transferred into the memory for the evaluation and processing. This paper deals with storage principles and proposes own methods for effective data block location and identification if no suitable index for the query is present in the system. Thanks to that, the performance of the whole system is optimized, and the processing time and costs are significantly lowered. The proposed solution is based on the master index, which points just to the blocks with relevant data. Thus, no sequential block scanning is necessary for consuming many system resources. The paper analyzes the impact of block size, which can have a significant impact on sensor oriented data, as well.

Mathematical model of the motion of a space vehicle with a manipulator

1997 ◽  
Vol 3 (5-6) ◽  
pp. 34-42
Author(s):  
N.S. Ashchepkova ◽  
◽  
Yu.D. Sheptun ◽  
Keyword(s):  
Mathematical Model ◽  
Space Vehicle

Image Compression Using Vector Quantization with Variable Block Size Division

2010 ◽  
Vol 130 (8) ◽  
pp. 1431-1439 ◽  
Author(s):  
Hiroki Matsumoto ◽  
Fumito Kichikawa ◽  
Kazuya Sasazaki ◽  
Junji Maeda ◽  
Yukinori Suzuki
Keyword(s):  
Image Compression ◽  
Vector Quantization ◽  
Block Size ◽  
Variable Block
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